Added Eric Petit's VMware graphics driver - thanks!

Made the following changes from the version I got from Eric:
* made BppForSpace() in DriverInterface.h inline to remove some warnings
* renamed driver source files to lower case.
* removed Be Inc. copyright from kernel driver as I couldn't see anything coming
  from Be Inc. there - correct me if I was wrong, Eric.
* Minor other changes like added missing header guards.
* The README provided in the main directory is only included in the accelerant
  directory.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@19793 a95241bf-73f2-0310-859d-f6bbb57e9c96

headers/private/graphics/vmware/DriverInterface.h

@@ -0,0 +1,119 @@
+/*
+ * Copyright 1999, Be Incorporated.
+ * Copyright 2007, Haiku.
+ * Distributed under the terms of the MIT License.
+ *
+ * Authors:
+ *		Be Incorporated
+ *		Eric Petit <[email protected]>
+ */
+
+#ifndef DRIVERINTERFACE_H
+#define DRIVERINTERFACE_H
+
+#include <GraphicsDefs.h>
+#include <Accelerant.h>
+#include <Drivers.h>
+#include <PCI.h>
+#include <OS.h>
+
+#include "vm_device_version.h"
+#include "svga_reg.h"
+
+#define MAX_SAMPLE_DEVICE_NAME_LENGTH	32
+#define CURSOR_ID						1
+
+
+/*--------------------------------------------------------------------*/
+/* Benaphores */
+
+typedef struct {
+	sem_id	sem;
+	int32	ben;
+} Benaphore;
+#define INIT_BEN(x)		x.sem = create_sem(0, "VMware "#x); x.ben = 0;
+#define ACQUIRE_BEN(x)	if((atomic_add(&(x.ben), 1)) >= 1) acquire_sem(x.sem);
+#define RELEASE_BEN(x)	if((atomic_add(&(x.ben), -1)) > 1) release_sem(x.sem);
+#define DELETE_BEN(x)	delete_sem(x.sem);
+
+
+/*--------------------------------------------------------------------*/
+/* Utils */
+
+#define ROUND_TO_PAGE_SIZE(x) (((x)+(B_PAGE_SIZE)-1)&~((B_PAGE_SIZE)-1))
+
+static inline int
+BppForSpace(int space)
+{
+	switch (space) {
+		case B_RGB32:
+			return 32;
+		case B_RGB24:
+			return 24;
+		case B_RGB16:
+			return 16;
+		case B_RGB15:
+			return 15;
+		case B_CMAP8:
+			return 8;
+	}
+	return 0;
+}
+
+
+/*--------------------------------------------------------------------*/
+/* Request codes for ioctl() */
+
+enum {
+	VMWARE_GET_PRIVATE_DATA = B_DEVICE_OP_CODES_END + 1,
+	VMWARE_FIFO_START,
+	VMWARE_FIFO_STOP,
+	VMWARE_FIFO_SYNC,
+	VMWARE_SET_MODE,
+	VMWARE_SHOW_CURSOR,
+	VMWARE_MOVE_CURSOR,
+};
+
+
+/*--------------------------------------------------------------------*/
+/* Structure shared between the kernel driver and the accelerant */
+
+typedef struct {
+	/* Device info and capabilities */
+	uint16			vendorId;
+	uint16			deviceId;
+	uint8			revision;
+	uint32			maxWidth;
+	uint32			maxHeight;
+	void			*fbDma;
+	uint32			fbSize;
+	void			*fifoDma;
+	uint32			fifoSize;
+	uint32			fifoMin;
+	uint32			capabilities;
+	uint32			fifoCapabilities;
+	uint32			fifoFlags;
+
+	/* For registers access */
+	uint16			indexPort;
+	uint16			valuePort;
+
+	/* Mapped areas */
+	area_id			fbArea;
+	void			*fb;
+	area_id			fifoArea;
+	void			*fifo;
+
+	/* This changes when we switch to another mode */
+	uint32			fbOffset;
+	uint32			bytesPerRow;
+
+	/* Current display mode */
+	display_mode	dm;
+
+	Benaphore		engineLock;
+	Benaphore		fifoLock;
+	uint32			fifoNext;
+} SharedInfo;
+
+#endif